Contemporary specimens of compositions, accompanied by explanatory or supplementary letters by the authors themselves, describing their methods, habits of writing, revisions, etc. cf. Pref
A high-school astronomy : in which the descriptive, physical, and practical are combined with special reference to the wants of academies and seminaries of learning
Standard up-to-date practical letter writer : a comprehensive and practical guide to correspondence, showing the structure, composition, formalities and uses of the various kinds of letters, notes and cards